12606390 has 24 divisors (see below), whose sum is σ = 32776848. Its totient is φ = 3361680.

The previous prime is 12606383. The next prime is 12606397. The reversal of 12606390 is 9360621.

It is a happy number.

12606390 is a `hidden beast` number, since 1 + 26 + 0 + 639 + 0 = 666.

12606390 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12606383) and next prime (12606397).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12606397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69946 + ... + 70125.

It is an arithmetic number, because the mean of its divisors is an integer number (1365702).

Almost surely, 2^12606390 is an apocalyptic number.

12606390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12606390 is an abundant number, since it is smaller than the sum of its proper divisors (20170458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12606390 is a wasteful number, since it uses less digits than its factorization.

12606390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140084 (or 140081 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 12606390 is about 3550.5478450515. The cubic root of 12606390 is about 232.7360073164.

It can be divided in two parts, 12606 and 390, that added together give a square (12996 = 114²).

The spelling of 12606390 in words is "twelve million, six hundred six thousand, three hundred ninety".